Peter Wingfield
Peter played Tanith/Hebron in three episodes of Stargate SG1 (Between Two Fires, Exodus and Crossroads). He was also the immortal Methos in Highlander and has guest starred on Sanctuary, 24, Touching Evil, Holby City and Caprica. IMDBOfficial SiteTwitterWilliam Devane
William was outstanding as President Hayes in Stargate SG1 (Lost City 1 and 2 plus Inauguration). He was a star of the US soap Knots Landing and has appeared in 24 as President Heller and also Early Edition, Revenge, Crumbs and Psych. IMDB